Window-screen.



BEST AvAiLABLE C E. G. LINDBEOK.

WINDOW SCREEN. Anmonxox msn un.' 1, 1m.

1,048,444. Y Patented N0v.5,1912.

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E. C. LINDBECK.

WINDOW SCREEN.

APPLIUATION HLBD MAB. 1. 1912.

1,043,444. Patentea'mv. 5, 1912.

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Unrrnn Is'rnfrfns rn EDWARD o. LINDBECK. F Jnmns'rown, Naw wenn, assiettes or oren-Hann 'ro t anima Jamison, or iamnsrown, New Yoan.

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application nlec'l Enron i.,

Sineciication e Eatent.

Toch whom, it may concern.;

Be it lrnown that i, Enwarn umani/aon, a citizen of the United States, residing Jamestown, in the county of Chautauqua M ing the supporting bars for the screen fabric to the window frame and for stretching said fabric; and the invention consists in the combination and arrangement of the parts as shown in this vspecification and the accompanying drawings and pointed out in the claims.

In the drawings, Figure l is an elevation of the inner side of the lower portion of a window frame with a screen therein. Fig. 2 is a to plan view of the upper cross bar on a hal len h screen in the open position. Fig. 3 is a similar view of the lower cross bar in the open position, ready for insertion in thewindow frame. Fig. 4 shows elevations of an angular bracket screw and' thumb nut for the same. Fig. 5 is an elevation of the entire window frame, withthe exception of certain middle portions, showing a full length window screen in position in said frame. Fig. 6 is an end view ofthe lower cross bar with the parts in the open position; and Fig. 7 is a similar end view with the parts in the closed position. Fig. 8 is a perspective view of the end: of the upper cross bar in a half length screen, that is, the cross bar which is attached to the window frame next to the lower ed e of the upper sash, showing the locking Var in position andl the spurs in "the end of the cross bar. Fig. 9' is an elevation of the simple lock for the middle joint of thecentralE cross bar in'l a full lengthscreen. Fig. 10 is an elevaton ofthe wire lock for holdin the screen inthe rolled-lip position; mi i 1-1v is'- an end view ofthe screen'- in the sai rolledqip position with the wire loch holding 'the saine. Fig. 12 is an elevation of: the end of the lower cross bar and aisecti'onai view of the window jet-nib with a holding plate thereon for holding the spurs in the end of 4the cross bar; and Fig'. 13 is a perspective view oi said plate.

Lilie numerals of reference refer to' corresponding parts in the several views.

The numeral 10 designates the window trarne which has a sill 11, top plate 12 and stops 13- with sash' grooves therebetween.

The numeral le; indicates the fabric of the window screen which is preferably of a suitable widthto tit between the jainbs in thesash grooves and have a selvage on each edge of the fabric 14.

The' upper end oi' a half length window screen as shown in Fig. 1 is provided with a cross bar 15 which Ahas a central hinge joint 16 by iiieans` of oblique and' lengthwise cuts 17 and a crosswise bolt 18 through the two parts. Alengthwise bar 19 is pivotally' attached at one end on top of cross' bar 15 by means of nails or screws 20,- the other end having a notch 21 which engages the nail 20 orvits end when the cross bar 15 is in the straight or closed position, yet which permits of the bending of the joint 16 when the notch 21 is slipped from the nail 20. The screen fabric is preferably attached by means of strips' 22 ealcli side of the joint 16 so that said' fabric bends at the joint when the jointed cross' bar 15' is' in the bent posi'- tioii and straightens back against the said cross ba'r when' inthe closed position.

The lower end of a full or half length screen is held by means of a cross bar 23 which has a central hingedl or pivotal joint 24' similar to the joint 16' in cross bar 15. The cross bar 23 differs from the jointedv cross' bar 1'5 in that the scren fabric 14 is attached' to the inner side oan adjacent full length locking' bar 25, which bar-is attached to each of the parts of the'jointed bar 23 by means" of an angular scr'ew bracket 26. The

end 27 of bracket screw 26 is threaded the' 26 in cross bar 23 so that the cross bar 25 can be slipped onto the parts 28' of the bracket screws and held in place moved from one of the bracket screws 26 by removing the thumb nut 29 and the bar 23 may then be bent in its middle ortion and uickly removed from the win ow casing. t is apparent also that cross -bar 15 may first be placed in the window casing and then bare-23 in the casing on the window sill 11, the lower edge of the bar 23 being lven the same bevel as thexwindow sill an the locking bar 25 is then pressed downward by means of thumb screws 29 until the screen fabric 14 is-stretched tight between the two cross bars 15 and 23.

In order to hold the ends of the cross bars firmly in place in the window jambs at each side, spurs 31 are provided in the ends of the bars, which spurs may be forced into the `wood of the jamb in the sash groove, or if it is desired to prevent the marring of the window jamb, a plate 32 having s urs 33 and spaced holes 34 may be provi ed, the spurs 33 permitting the plate 32 to be driven into the window jamb and held firmly in place and the holes 34 providing openings or the spur or spurs 31. f

When'a full length window screen which covers the entire window frame and both upper and under sashes is used, a top cross bar 35 is provided which is quite similar to cross bar 15. It is provided with a hin joint 36 the same as bars 15 and 23 and has the screen fabric 14 attached to the two parts of thehbar 35 on each side of said joint 36, and is provided with spursv 31 in each end and may have a locking bar 19 but preferably has a simple locking button pivotally attached to cross plate 3'? to hold the joint 36. A middle cross bar 38 is provided which has a central joint 39 the same as the other cross bars and is preferably held in place by means of the button 37, the fabric bein attached to said cross bar to hold it sti y in position against the window jambs.

In order to pack the' frameless Window screens for shipment 0r for storing away the screen fabric 14 is wrapped around one of the end cross bars, preferably the upper, and a U-shaped holding wire 40 is provided preferably on the outer cross bar of the roll, being held in place by spaced staples 41 so that it can slide back and forth Abeneath said staples. The outer end is bent at an angle so as to be insertible in a. hole 42 in the end of the inner cross bar when in the rolled position, as shown in Fig. 11, thereby hold- 'of screen fabric, a jointed cross bar attached across the upper and lower ends of said strip, means on theends of said cross bars for holding on the opposite window jambs when said cross bars are straightened therebetween, an additional bar on each of said cross bars to hold them in the strai ht position, and means for removably hol 'ng said additional bars on said cross bars.

2. A window screen consisting of a sheet of screen fabric, hinge 'ointed cross bars at the up er and lower en s of said screen fabric, ho ding means in the ends of said cross bars for attaching to the o posite window jambs, locking bars pivota 1y attached at one end to each of said jointed cross bars and removably attached at the other ends to A said jointed crossbars, one of the ends of said screen fabric attached to one of said locking bars on the adjacent cross bar, and means for vertically adjusting said locking bar to which the screen fabric is attached to stretch said fabric.

3. A window screen-consisting of a sheet of screen fabric, cross bars at the upper and lower ends of said screen fabric hinge jointed in their central portion, locking bars ivotally attached at one end to said cross ars and removably attached to said cross bars at their other end to hold said cross. bars in a straight position between the window ambs,

spurs on the endsof said cross bars for holding on the window jambs, said screen fabric attached to the upper cross bar and to the lower locking bar, and screw brackets-on said cross barfor holding said lower cross bar to adjust said locking bar and stretch said fabric.

4. A window screen consisting of hinge jointed upper and lower v,cross bars, spurs 1nV the ends of said cross bars for holding on the opposite window jamb, locking bars for holding said jointed cross bars in the straight osition between said window jamba, a s eet of screen fabric attached at one end to the upper cross bar and at the other end to the lower locking bar, screw brackets on the side of said lower cross bar having a vertical portion insertible through said lower locking bar when in the locking position, and thumb nuts on said screw rackets for adjust' said lower locking bar and stretching sai fabric, substantially as and for the purpose specified.

5. A window screen comprising a sheet of screen fabric, a jointed cro bar attached to the up r end of said screen fabric, a second join cross bar midway ofthe ,length of lll said screen fahr-ic, locking'means for said jointed. cross bars to hold them inthe'- straight position, a third jointed cross bar for the end of `said .sereen'fabric, a locking barlengthwise of said third cross bar, said screen fabricy attached to said locking bar, means for pivotally and adjustably attaching said locking bar to said lower cross bar, and means on the ends of said cross bars for holding on the window rarne, substantially 10 as and for the purpose specled.

In testimony whereof I have aiXed my signature in the-presence of two witnesses.

EDWARD o. LINDBECK.

Witnesses:

H U. HARRIS, A..HENRY JOHNSON. 

